PT-2026-91603 · Apple · Apple Macos

CVE-2026-84543

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Published

2026-09-14

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Updated

2026-09-24

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Name of the Vulnerable Software and Affected Versions macOS versions prior to Golden Gate 27 macOS versions prior to Sequoia 15.8 macOS versions prior to Tahoe 26.7
Description An out-of-bounds access issue occurs when connecting to a malicious SMB server, which may lead to unexpected system termination or corruption of kernel memory. This is caused by insufficient bounds checking when accessing memory areas.
Recommendations Update to macOS Golden Gate 27. Update to macOS Sequoia 15.8. Update to macOS Tahoe 26.7.

Fix

DoS

Out of bounds Read

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Weakness Enumeration

Related Identifiers

CVE-2026-84543

Affected Products

Apple Macos